Question

(ii) There is an electric bulb at 7.5 m high on a pole. A man of
height 1.5 m is standing at a distance 9 m from the pole. Find
the length of his shadow ​

Answer 1

Answer:

given height of the whole is equal to 6 m

hypertonus equals to 9 metre

9 square equals to 6 square + b square

i.e. 9^2=6^2+b^2

81=36+b^2

81-36=b^2

45=b^2

b=√45

b=3√5 m

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